Coke-drawing machine.



H, GRBER, JB. @0KB DRAWING MAGHINE. APPLIGATIONILED SEPT. '7. 1904.

Patented Dec. 6, 1910.

6 SHEETS-SHEET 1.

227, QW M,

AHORA/EXT;

i H. GRBER, JR.

GOKE DRAWING MAGH` 'R APPLIGATION FILED SEPT.

Patented Dec. 6, 1910 5 BHBETVS-SHEET 2.

ATTOR E11/,S

H. GREER, JR.,

COKE DRAWING MAGHINE.

APPLICATION FILED srTsl, 1904 Patented'De'c. 6, 1910.

s 'SHBBTPBHBET a.

NTOR.

l [NVE WITNESSES:

H. GREER,.JR. GOKE DRAWING MAGHNE.

APPLXCATION FILED SEPT. 7. 1904.

977,522'. Patented m0111910.`

a SHEETS-SHEET@ H. GREER, 5R. com DRAWING MACHINE.

APPLIGATION FILED SEPT. 7. 1904.

atentef Dec. 6, 191@ 5 SHEETS-SHEET 5.

.dit

To a-ZZ whom "it may concern:

COKE-BRAWING MACHINE.

Specification of Letters Patent.

atented Dec; 6, lT9110.

-Application filed September 7, 1904-. Serial No. 223,585.

Be it known that I, HOWARD Ganan, J r., a citizen ofthe United States,residing at Chicago, county of Cook, and State of Illinois, haveinvented certain new and useful Improvements in Coke-Drawing Machines,of which the following is a full, clear, and eX- act specification.

This invention relates to that class of machines for drawing colte fromcokev ovens which iisnally comprise a hoe orv rake carried upon ahorizontall f arranged reciprocal handie which in turn is pivotallymounted upon a car or truck upon vertical and horizontal axes so thatwhile being inserted into or withdrawn from the oven it may he raised orlowered or laterally deiiected to suit the situation of the coke withinthe oven, the colte drawn out by the hoe falling upon a suitableconveyer which is also mounted on the truck and by is cast up in a pileout vof the way.

rpg/hen the noe is drawn through the 00k@ the particles being drawn outby the hoe shape themselves into a pile of approximately pyramidal formwith theapex turned in the direction of the .line of movement. Thispyramid grows less and less acute as the hoe advances and also decreasesin depth or in the direction ofits vertical axis, the hoe and innerparticles of the pile slipping past the particles at the sides orperimeter which are left behind in two straight rows at both edges ofthe hoe, and if the move` ment he carried far enough, the hoe willeventuaily pass by practically all of the particles Jformerlyconstituting the pile.

rfhis invention is designed to obviate the described defect in theoperation of the hoc and therefore has for one of its important objectsto change the plane of the hoe with relation to its linc'of bodilytravel so that it will approximate a right angle with the side of thepile, alternately on opposite sides and hence alternately throw thesides of the pile inwardly toward the line of general ad- Vance andthereby keep the particles advancing in front of the hoe, this action ofthe hoe being also capable of being utilized for the further purpose ofworking the hoe into the crevices of the coke. when being embeddedpreparatory to drawing the coke.

The walls of coke ovens being comparatively thick and the doorscomparatively narrow, it is obvious that in order to reach all parts ofthe coke bed with the hoe the handle thereof must be laterally deflectedthroughout a considerable range and if the center of deflection be anyconsiderable dis- -tance outside the door, the truck must be shiftedbackward or forward to allow the handle to pass the inner edge of thedoor.

The invention therefore has for its further objectto so improve themachine as to avoid this obvious and serious objection of having toshift the car with changes of angle of the hoe handle.

in embedding thence im@ ai@ @are arrei quently happens that it engagesat a point where the colte is solid, and even though it should enter acrevice between the masses, the crevice is so irregular as to render itdiiiicultto embed the hoe by direct downward movement and hence it isdesirable to A,also vibrate the hoe haelt and forth to effect anentrance; and the invention therefore has for its further object to givethe `hoe such vihratory motion. i

Vvith the described ends in view the invention consists in certainfeatures of novelty in the construction, combination and arrangement ofparts whereby,T the said objects and certain other objects which willhereinafter appear are attained, all as fully described with reference-to the accompany.J ing drawings and more particularly pointed out inthe claims.

In said drawings Figure l is a plan view partly broken awayand showingthe wall of the oven in section. i Fig. l is an enlarged detail sectionof the hoe tiltingrmechanism. Fig. 2'is a side elevation of the machinewith the parts in position shown in -F ig. l, the wall of the oven beingin vertical section.

Fig. 3 is an enlarged vertical, longitudinal,

sectional view of the hoe and a part of its handle and operatingmechanism. F ig. 4 is a transverse section thereof on the line 4 4 Fig.3. Fig. 5 is a horizontal section thereof on the line 5 5, Fig. el. Fig.6 is a transverse section on the line 6"-6 Fig. 5. Fig. 7 is'a vertical,longitudinal sectional view of the machine partly broken away showingthe hoe withdrawn and elevated ready to he inserted. Fig. 8 is fanenlarged transverse section on the line 8-8 Fig. 7. Fig. Sis a plan viewof the truck Y with the superstructure a rear elevation thereof partlybroken away partly broken away, removed. Fig. .10 is' clutch mechanismfor raising and lowering the hoe handle, and Fig. 13 is a verticalIsection on line 13-13 Fig. 2.

1 is the wall of the coke oven having the usual doors through which thecoke is drawn i and one of which is shown at 2, and 3 is the track orrailway passing` along the side of the oven contiguous to these doorsand on which the aforesaid truck for supporting the drawing machine isdriven from door to door at will, usually by a suitable motor mountedupon the truck. In this exemplification of the invention one pair oftruck wheels has its axle 5 provided with clutch 6 and bevel gearconnection 7 with a worm wheel shaft 8 which is driven by worm 9 on theshaft of a suitable motor 10, the latter being disconnected from theshaft 5 when desired by shifting the clutch. G will be understood. Theconreyer for receiving the coke as it is drawn from the door 2 andcasting it up on the pile at a suitable distance from the machine, asbefore described, may be of any suitable construction. It is shown asbeing composed of slats 11 secured to two endless chains 12, 13 whichpass around sprocket wheels 14, 15 on a shaft 16 at one end of theconveyer, and this shaft is mounted in suitable bearings 17 and lhas asprocket and chain connection 1S with the shaft 8 through theintermediaryv of a clutch 20 mounted in the upper end of a curved* frameor boom 21 whose lower end is pivoted on a rod 22 which 1s mounted 1nsuitable brackets 23 on the frame 24 of the truck so that the outer endof the conveyer may be raised and lowered and in order that the outerend may be thus adjusted when required and may be adequately supportedwhile in use, the frame or boom 21 is connected near its upper end to astay rod 25, one on each side, wh'ose lower ends are attached by anysuitable connections 26 to two uprights 27 respectively which arerigidly secured to the sides of the boom 21 respectively at their lowerends and have adjustable eonnection at their upper ends with the frame24 of the truck. These adjustable connections consist ot eyebolts 28pivoted to the frame 24 and passing through lugs 29 secured to theuprights27 respectively and provided with nuts 30 on opposite sides 4ofthe lugs whereby the uprights 27 may be drawn toward the frame 24pulling on the stay rods 25, for raising the conveyer.

The frame 24 of the truck is preferably quadrant shape in plan view soas to better accommodate the concentric guides 31 for the auxiliarycarriage or slide 32 which rests upon the truck frame 24 and is providedwith flanges 33 or other suitable means for engaging with the guides 81and holding the carriage or slide 32 in position, the carriage or slide32 being curved or of quadrant shape similar to the frame 24 as bettershown in Fig. 1. The curvature of both of these members is outward oraway from the wall of the oven, with the lower end of the conveyercentral with relation to the ways or guides 31 and projecting toward theoven wall considerably beyond'the inner edge of the carriage or slide32, as better shown in Fig. l. so that as the colte is withdrawn fromthe door it may be readily directed upon the lower end of the conveyerby amV suitable chute 34 secured to the truck frame 24, and which framehas an opening or passage 35 in its under side for the accommodation dfthe said conveyor and the coke supported thereon A\ll of the operatingmechanism,with the exception of the conveyer and means for driving thetruck, is mounted upon this auxiliary carriage or slide 32 and iscapable of having its position on the truck readily changed throughoutthe length. of1 the ways: 3l in order to introduce the hoe into the ovenat various angles with relation to the oven walls as will now beexplained.

Formed on or secured to the'slide iare two frame members 35, 36 and inthese is journaled a horizontal shaft 87 upon which is pivoted a tiltingframe 38, constituting the support for the hoe and its handle andprovided with two pairs of Aflanged rollers 39, 4() pivoted therein onpins 41 and serving for the direct supportof the handle of the hoe whichmay be constructed in any suit able way but which is shown as composedof two channel bars 42, 4.3 arranged with their hollow sides together asbetter shown in Fig. 8, and fitted accurately between the tianges of thetwo pairs of rollersl 3S), 40, the pairs of rollers being situated inthe frame 38 a considerable distance apartalas shown in Figs. 2 and 7,so that the handle of the hoe will be given an adequate support while itwill be free to slide or run lietween the rollers without liability ofbending when the hoe, 4 4, carried on the inner end thereof meets anobstruction. The frame 24 of the truck is provided with a segment rack45 arranged on the upper side thereof concentrically with the waysl andiu a pair of hangers 46, see Figs. 9, 10, on the under -side of theslide 32 is jourualed a worm shaft 47 which meshes with the said segmentrack 45 and when rotated, it will be seen, ,causes the slide orauxiliary carriage CIK llfi

32 to travel back and forth along the ways" 31 independently of anymovement of -the truck on the rails 3. rhe center of the arcs on whichthe ways 31 are struck being situated somewhere within the door 2 of theand to substantially all points within the Vwhereas if the center ofhorizontal oscil-y oven walls, without shifting the truck on the track 3or causing the hoe to discharge -thecontents of the oven where it `willnot find proper lodgnient upon the conveyer.

lation of .the vhoe handle were situated over the truck or at anyconsiderable (hstance from the outer face of the wall, the ranget ofdeflection of such handle, without moving or shifting the truck on thetrack. would be materially limited.

The necessary motion is imparted to the i worm 47 by any suitableoperative connection with a motor 48 preferably mounted d1reetly uponand moving with the slide 32.

' This operative connection may consist, for

examp e,of two trainsof gears, one of which comprises vgears 49, 50, 51and 52 transmitting motion to .a shaft. 53 on which is secured a pinion54 meshing with an' idler 55 which engages a pinion 56 on the shaft lso, 57 of the worm 47. The other train of gears comprises gears 58, 59 and60 which also transmit motion to the shaft'53. The gears 49 and 58 :arearranged on the motor shaft .63, the gears land 59 on the shaft 37, and

the gears and 60 on the shaft 53, but all vthese gears are loose ontheir respective with .the center of said rotation at the center shaftsand are connected thereto only through the intermediary of independentclutches so that motion may be imparted to the shaft 53 by either trainindependently of the other, 'and because of the presence of the idlergear 50 in one of these trains, one trainrotates the shaft 53 in adirection opposite that of the other, it being observed that gears 58and 59 intermesh directly Whereas gears 49 .and 51 have the idler 50interposed between them. y Consequently when one train of gears isactive the worm 47 moves the auxiliary carriage or slide32 in onedirection on the ways 31 and when :the other train is rendered active itmoves the carriagebr slide in the opposite direction, thereby rotatingthe hoe on its vertical axis of the arc on which the curved ways 31 aredescribed and it Will be understood that the wider this arc the furtherinto the oven such centerwill be situated, although it is not essentialfor obtaining some ofthe advantages of thus bodily revolving theauxiliary slide or carriage, that the center of revolution be actuallywithin either the door or the oven proper, the principle being that bythus revolving the carriage or slide 32,

u the center may be carried much closer'to the ovenV and. as close asmay 'be necessary in y order to enable the hoe to clear the inner inFig. l1, and theconstruction corners of the doorway when the hoe isintroduced at an oblique angle for reaching the sides of the. oven nearthe front.

All of the gears 5l, 59, 52, 60 are loose on their respective shafts 37,53 and they are preferably formed on 'or secured to and in factconstitute one member of their respective clutches before referred to.These clutches are similar iu construction, and in Fig. Il the clutcheswhich I'drive the gears 51, 59are illustrated in section as typical ofall of them. It will be seen by reference to 'this figure that thegearivheel is hollow or the toothed portion being formed on an annularlange 62 whichsurrounds a cone 64. This cone, together with the gear,constitutes one member of the clutch, the other member of which is inthe form of a cup 65'sec'ured to the shaft on which the gear is looselyjournaled so as to slide longitudinally but revolve therewith. l'n eachof they shafts is formed two slots G6 and through the hubs of the cups65 pass keys 67, G8 and these keys -are connected together in such a waythat when o ne of the cups- 65 atone end of the shaft is thrown intoengagement. the cup 65 on the opposite end of the same shaft will bethrown out of engagement. ln'order to do this the shaft is made hollowand in it is situated a sliding rod 69 to which the said keys areconnected as shown.

sov

in section in Fig. ll in connection with theVv shaft 37, theconstruction for the shaft 53 and keysv 68 being similar and the rodcorresponding to rod 69 being shown at 70, Fig. 11. In order that therequisite longitudinal. movement may be impartedto the rods-69, 7 O,they are provided with operating handles or levers 7l, 72 respectivelywhich have suitable connection with the rods, consisting of a screw 73screw threaded in a cap 74 and .provided with swivel'connection 75 withthe end of the rod. This construction in connection with the rod G9 isshown in section is similarv for the rod 70 and lever 72. j lVhen thelever 7l, for example, is oscil- Alated th-e screw 73 Will pull the rod69`longitudinally or force .it inwardly according to the direction ofoscillation, and thereby throw one of the clutch members ($5 outI ofy;

action and the other one into action. Theone that is in action Willrotate. the gear wheel .51 or 59 and thereby impart rotation to the`gear Wheel 52 or G0 on that side. If

now it should be desired to shift the auxiliary carriage or slide 32longitudinally of th-e yways 3l, the clutch lever 72 will be thrown tothe right or to the left accordingT to the direction in which it isdesired to send the carriage. lf for example .it be thrown to the right,asvicwed in Fig.' ll, the lever 7l having previously been thrown to thelright, the shaft 53 will become connected to the train of gears 51, 52and the worm l? sired to allow the carriagej82 to remain at, rest buttomove the hoe handle 42, 48, up, or down, the lever 72 would be so placedto allow both clutch members (35 on the shaft l 58 to remain out oilengagementavherehy onev or the other of the gears 52,60 may be util,

ized as an idler for'communicating rotation to either of a pair ot gearsi (l, 77, which are ournaled loosel f u )on a shaft 78 and are 0provided with clutch members 79, 80 respectively adapted to he engagedalternatelyT by companion clutch members 81, 82 sliding on shaft 78 butoperatively connected therewith by keys 88, 84 respectively so that theshaft 78 willrotate to the right or to the left accordingly as theclutch member vS1 or the member 82 is in engagement with -its companionmember. The clutch members.

81, 82 are secured through the medium of 39 the keys 85%84 to a rod 85inserted through shaft 78 like`the rods G9, 70, and the end of rod 85 isconnected to an operating lever 86 like the levers 71, 72 and by a meanssimilar to that described with reference tothe lever '71, namely, thescrew 73, cap 74 and A,

coupling 75. The shaft 78 is provided. with al screw 87 on whichisparrange'd a. nut 88 secured to a slide 89 which takes its supportupon the top of the carriage 32, thus relieving the screw 87 oftransverse strain. The slide 89 is pivoted to the lower end of a forkedlink 90 whose upper end is pivoted to a horizontal or substantiallyhorizontal lever 91. One end of the latterl` is pivoted at 92.

ina suitable standard or'fxed support 98 mounted on the carriage orslide 82 and the other end of the lever 91 is connected to the pivotedframe 38, which constitutes aguide .and keeperfor the hoe handle,lthrough the medium of any suitable connection such as a pair of hangers94 connected by a cross bar 95 on which is arranged a lug 96 pivoted tolever 91. By this means itwill be seen that when the nut 88 travelsalong the screw 87, as a result ot' the rotation of the latter, thelever 91`will be raised and lowered and as a consequence the inclinationof the hoe handle will he changed, the handle being I lowered at theouter end when the nut 88 moves toward the clutch 81 and raised when thenut moves in the opposite direction and this action of the nut is underthe control ot the operator through the handle orlever 86 which givesthe nut an operative connec-` 55 tion with the motor 48 through eithertrain of gears 49, 50, 51g, 52 and 76 which moves the nut in onedirection, or 58, 59, 60 and 77 which moves the nut in the oppositedirection the length of the screw 87 or as long as the proper one ofIthe clutches 82 is 70 held in engagement with ,its companion clutchmember. The lever 91 is preferably composed of iiexible material such astempered steel so that in the event of this ver, tical oscillation or'the hoe handle meeting/t7 with an abnormal resistance, 'the lever 91will yield without damaging the mechanism. The means tor inserting andwithdrawing the hoe. that. is moving its handle longitudinally throughits guide rol ers 39 40`will 80 now be described. The channel bar 43 isiormed on the under side with a. series of teeth 97 constituting a rack'bar and with this rack bar engages a pinion 98 keyed to shaft 97 andconsequently is adapted to be 85 rotated to the right or to the leftaccordingly as the clutch lever 71 is thrown in one direction or theother and yhence the hoe handle will be moved longitudinally the Jfulllength of the rack bar 97, or as long as one vof the clutches on theshaft 37 is in engagement, this action also being under the absolutecontrol of the operator through the Inedium ot' the lever 7 Y The hoeproper 44 has pivotal connection 95 with its handle on vertical andhorizontal Atratnsverse axes, one olc these axes is constituted by a pin99, arranged horizontally and extending transversely'A of the h'oehandle,

and connects the hoe to a shank 100, which 10Q..

is arrangedbetweenj and pivoted to a pair of lugs lCln the back of thehoe, the shank 100 being provided at itslower end lwith laterallyelongated bearings 102, for the pin 99. The shank @100 is pivoted in` ayoke 103 105 by means of avertical pin 104, which constitutes the otherone or' the axes ofthe hoe. The yoke 103 is formed on or secured to anarm 105 which is attached in any suitableA manner to the channelbars 42,48 constitut- 110 i the arms 10G on the pivot 104 and which 120ioscillation is caused by the rotation of the cani 107 Vbetween the arms106. The cam- 107 is n'tountedvupon one end of a shaft 108, journaledcontiguous to the cam in bearings 109, '110 whichare formed on orsecured to 1125 the upper' side of the arm 105, and the shaft 108 isalso supported in bearings 111 located yatv suitable intervalsthroughout .the length rofthe lower channel bar'43. It will thus be seenthat when the shaft.- 108 is rotated,13

i the hoe will be oscillated on its vertical axis to necessary forpreventing the particles of" 104 or given the movement before referredthe coke or other material from slipping past the hoe, or vice versa,while the hoe is being withdrawn, as well as giving the hoe thatwrig'gling movement which facilitates its introduction in a downwarddirection in the coke bed. Rotation for this purpose may be imparted tothe shaft 108 by any suitable means but preferably by a small motor 112mounted directly upon the hoe handle and preferably at the outer end ofthe hoe handle so as to at the same time serve as a connterbalance forthe handle and hoe, the outer end of the shaft 108 being provided with agear wheel 113, with which meshes 'a inion 114C on the shaft of themotor 112.

lectrical connection is established with the motor 112 from any suitablesource of current through a flexible connection 115,which is preferablywound up by any suitable take up device 116 of a well known form forwinding up tapes. etc., mounted upon and moving with the slide 32, sothat the motor will have its independent connection during its travelback and forth and without depending upon the medium of any metallicparts of the machine for that purpose or making such connection throughthe intermediary of any parts 'that have been inserted into the oven.

The pivot 9S) permits the hoe 4.4ito be folded backwardly under itshandle while being inserted and after it is inserted it may be pulleddownwardly into its operative position by a rod 117 pivoted at 117a tothe upper-end of the hoe proper and arranged in suitable guides alongthe top of channel bar 42. This rod 117 is sufhciently flexible to allowthe hoe to make its various described movements without interference,and it may be given longitudinal movement by a pin wheel 118 journaledin the frame 38 on a shaft 119,l one of whose bearings 120 iseccentricthereto and is provided with a handle 120n whereby the pins of wheel 118may be thrown downwardly int-o engagement with holes 122 Ain the rod117. The shaft 119 may be rotated by handle 121. and

thus cause the hoe to vibrate on its pivot 9S).

The cam 107 is incased as far as possible by an extension 123 of theupper side of channel bar 42, `which is` slotted at 12J: for the passageof the rod 11i. the arm 105 being provided with side flanges s.

In order to relieve the strain on the pivots 99, 1041 as far as possiblewhen the hoe in operation, the upper end of the hoe is turnedbackwardly. as shown more clearly in Fig. 7, and provided with -a socket125 which fits over the upper end of pivot 104 and the upper end of yoke103 when the hoe is thrown downwardly, as shown in Fig. 2.

With a machine thus constructed it will be seen that the operator hasabsolute con trol over all movements of the hoe which B126, 127 beinginterposed between the ends of the worm and one of the hangers 46 andthe pinion 56 respectively so that should the hoe handle or hoe meetwith an abnormal `resistance or obstruction auring the travel, of thecarriage 32 upon the wa s. 31,

the springs 126, 127 will yield suthciently to givethe operator anopportunity to throw the leverv72 and stop the movement of the carriage32. lt will also be seen that dur ing the withdrawing movement of thehoe which is effectedby the pinion 98 and rack Abar 97, the hoe is alsogiven the important wriggling movement or oscillation on its verticalaxis for purposes before described as long' as the motor on the hoehandle is left in operation, and this too is under the absolute controlof the operator. f

Having thus described my invention what lclaim as new therein and desireto secure by Letters Patent, is: f'

l.' In a machine for the purpose describedA the combination of a hoehandle and a. hoe pivoted thereto on a vertical axis, means forsupporting the handle horizontall and means for oscillating' the lhoe onthe said axis. 2. ln a machine for the purpose described the combinationof a hoe pivoted on a vertical axis contiguous thereto, means formovingl the hoe horizontally and means for oscillating the hoe on saidaxis.

v 3. In a machine for the purpose described the combination of a hoerotatable on avertical axis and a handle therefor rotatable about adi'erent vert-ical axis, means for supportingthe handle and means foroscillating the hoe about the first said axis. y

4. In a machine for the purpose described the *combination of a hoerotatable on a vertical axis, a movable handle therefor rotatable abouta different vertical axis, means for supporting the handle andmeansmounted upon and movable vwith the handle for oscillating the hoeabout the first said axis. .1

5. ln a machine for the purpose described the combination of a hoe, ahandle therefor, a hifurrated arm secured to the hoe and pivoted to saidhandle, acam journaled on the handle and arranged between the branchesofsaid arm and means for rotating?- said cam `and thereby oscillatingthe hoe. (3.' In a machine for the purpose described,

the combination of a hoe handle, a hoe -piv oted thereto on a horizontalaxis, positive means for operatingthe hoe, the upper edge of said hoebeyond the pivot being deflected rearwardly, and means other than theoperating means for engaging said top projection for bracing and forminga rigid lock for the hoe.

7. In a machine for the purpose described the combination of a hoehandle, a hoe pivoted on a horizontal axis and connected thereto, anoperating connection with the hoe extending toward the opposite end ofthe handle and having perforations, an eccentric pin wheel having pinsadapted to entnrning said wheel.

8. In a machine for the purpose described the combination of a hoe, ahandle for said hoe comprising two channel bars' secured with theirhollow sides together and havingpivotal connection with the hoe, a shaftjonrnaled within said channel bars and motor and hoe for moving the hoeon its pivot, and means for pivotally supporting the handle on ahorizontal axis.

10. In a machine for the purpose described the combination of a hoehandle. a hoe having pivotal support on one end thereof, a motor mountedon the other end of the handle, an operative connection. between the hoeand the motor whereby the hoe moved on its pivot, means for supportingand moving the handle longitudinally, a flexible connection between themotor and a source of power, and means for taking up the slack in saidflexible connection as the motor moves with the'handle. v Y

Il. In a machine for the purpose described.` the combination of la lioe,an independently movable truck, a reciprocatory handle tor the hoe,supported for movement on an iin-v aginary vertical axis outside thetruck, and

-means. supported on the truck for recipro` eating the handle.

12. In a machine for the purpose described, the combination of a hoe, ahandle therefor, means for supporting the handle for movement on animaginary normally vertical axis within the oven door when the hoe isinserted,and means for moving said support.

13. .In a machine for the purpose described the combination of a hoe, ahandle therefor, a curved way, a support Afor said handle on said wayand yielding means for moving said support back and forth along saidway.

14. In a machine for the purpose described 'gage in said perforationsand means forV the combination of a hoe, a handle therefor, a-curvedway, a support for said handle mounted on said way, a motor mounted onsaid support, a segment on said support, a

worm engaging the segment, two trains of,

gears between the worms and motor 'for rotating the worin in eitherdirection. and means for disconnecting either train at will. l5. In amachine for the purpose described. the combination of a hoe, a handletherefor, a truck, a curved way on said truck, the iinaginary axis ofsaid way being situated at a point beyond. the vertical plane of theoven wall when the hoe is inserted inthe oven, a carriage mounted onsaid way and on which said hoe handle is mounted and movablelongitudinally independently of said carriage.

1G. In a niachine for the purpose described tlie combination of a hoe, ahandle therefor, means for pivotally supporting said handle, a screw,means for rotating the same at will, a traveling nut on said screw, anda link connecting said nut with the First said means.

1T. In a machine for the purpose described the combination of4 a hoe, ahandle therefor, means 4tor pivotally supporting said handle, a'screw,means for rotating the. same at will, a traveling nut on said screw andva yielding operative connection between said mit' and the first saidmeans. 1S. In a' machine for the purpose described the combination of ahoe, a handle therefor, means tor .pivotally supporting 'said handle. ascrew, means tor rotating the same at will, a traveling nut. on saidscrew. a pivoted lever connected with the first said means and a linkconnecting said nut and lever whereby the movement of the nut willoscillatc the lcvcr.

lf). In a machine tor the purpose described the oiiil iii:ition ot ahoe, a handle therefor. a carriage movable along an indirect line. meansfor pivotally snpl'iorting said handle on said carriage on a horizontalaxis.` a driving means for .moving said carriage. a reciprocating meansfor moving said handle longitudinally, a tilting means for tiltingl thehandle, a motor, two trains of gears connecting said driving,reciprocating` and tilting means with said motor, one of said trainsbeing a reversing train, and

means for Arendering either train activent will. l

20. In a machine tor the purpose de scribed the combination of a hoe, ahandle therefor, a carriage movable along an indilrect line, means torpivotally supporting said handle on said carriage on a hori" iital axis,a driving means for moving said carriage, a reciprocating means formoving the handle longitudinally, a tilting means for `tilting thehandle, a motor, two trains of gears connecting said driving,reciprocating, and tilting means, with said motor, one of pairs, andltwo clutches for each of said' pairs adapted to alternately lconnectthe through the'arc of gears of that pair with their said shaft.

2l. In a machine for the purpose described the combipation otra truck, aconveyer having one end mounted thereon extending beyond the front ofthe truck, and comprising a 'frame piroted to the tru'ck, uprightsrising from said frame, adjusting screws connecting said uprights withthe truck, and independent stay rods secured to said uprights and to theonterend ot' said frame forfadjustably supporting the con-A veyer. i

s22. In a machine for t-he purpose described, the combination of a hoe,a handle to which said hoe is connected on a horizontal pivot, asupport, means for connecting the handle to the support on a normallyvertical imaginary pivot within the oven door, and means for moving thesupport.

23. In a coke drawer, the combination of aA truck and a bodily movablecarriage mounted thereon arranged to travel laterally a circle andprovided with a reciprocating ram. l

Q4; In a coke drawer, the combination 'of a trnck,'a laterally movablebodily traveling carriage thereon provided with a reciprocating ram, andmeans embodying a curvilinear trackway for positioning the carriage andvfram at varying angles with relatlon to theV truck.

25. In a coke drawer, the combination of a 'truck and a bodily movablecarriage mounted thereon arranged to travel laterally through the arc ofa circle and provided with a reciprocating ram, and means for loeatingthe ram carri ge at varying positions on the truck.

26. A coke drawer comprising a truck provided with a curved controllingtrackway, and a laterally niovable ram carriage and ram supported uponthe truck and conlrolled solely by said trackway asftotheir relativeposition with relation to the truck.-

27. In a coke drawer, the combination of a truck and a bodily movablecarriage mounted thereon arranged to travel laterally througlrthe arc ofa circle and provided with a reciprocating ram, means for locating theram carriage at' varying positions on the truck. and means for actuatingthe ram.

28. A coke drawer comjnising a truck provided with 'a curved trackwaydescribed from a theoretical center outside the truck, and a carriagemounted on Vthe truck having devices \engaging said trackway andprovided with a reciprmfatingl ram.

29. In a coke drawer, the combination of a truck having a Hat uppersurface and a curved trackway, and an unattached freely movable carriagemounted for lateral movementon the truck and controlled as to itsmovement solely by said trackway, and provided with a reciprocating ram.j

30. In a coke drawer, the combination of a supporting truckprovided witha curved trackway extending transversely across the truck, acarriagefreely mounted upon said truck and adapted to be controlled as to itsposition by said trackway, anda reciprocating ram mounted in saidcarriage.

'31. In a coke drawer', the combination of'a truck, a laterally movableram carriage, a

reciprocating ram mounted on said carriage,

and means mounted on and traveling with the ram carriage for actuatingthe 'ram at its 80 various positions withrelation to the truck. 32. In acoke drawing machine arranged to travel in `front of and closelyadjacent to a bank of ovens: the combination with the truck, of a ramcarriage having areciproeating ramand arranged to travel laterally inthe arc of a circle'desoribed from a theolI retical center so positionedwith relation to' the operative position of the oven door as to permitof varying' lateral positions of the 90 ram to explore the interior ofthe oven without moving the truck. l

33. In a coke drawer, the combination. of a truck provided with -acurvilinear track- Way, and a non-pivotally-attached ram car/- riagecontrolled as to its direction of travel by said trackway and providedVwith a reeip-j rocating ram.

34. In a coke drawer, with a bank of ovens and located in front thereof,of

-the combination supporting rails a laterally trav-` veling truckmounted on the rails, a'freely and bodilyv movable ram carriage mountedf on the truck and provided with a reciprocatf ing ram, and means foroperating the ram 105 carriage and'ram and vfor defining their movementvwith relation to an imaginary center adjacent to the oven door, for thepur.v pose described.

35. A coke drawing machine consisting of ,1,.10 aportable truck providedwith a shifting relatively movable vram carriage and ram, f and meansembodying a' 'curvilinear trackway for independently adjusting the ramcarriage and ram and for locating them at varying angles and positionswith relation to thev truck.

36. A coke drawing machine consisting oj' a portable truck provided witha shifting .relatively Amovable ram-carriage .and ram means embodyingacurvilinear trackway for independently adjusting the ram carriage andram and for locating them at varying angles and positions with relationto thc truck, and means mounted on the ram carriage Jfor actuatingtheram.

HOIVARD GREER, Ja. l/Vitnesses z FRANCIS A. HorniNs, IVI. B. ALLs'rAn'ri

